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Kusmiati K, Fanani A, Nurkanto A, Purnaningsih I, Mamangkey J, Ramadhani I, Nurcahyanto DA, Simanjuntak P, Afiati F, Irawan H, Puteri AL, Ewaldo MF, Juanssilfero AB. Profile and in silico analysis of metabolite compounds of the endophytic fungus Alternaria alternata K-10 from Drymoglossum piloselloides as antioxidants and antibacterials. Heliyon 2024; 10:e27978. [PMID: 38524563 PMCID: PMC10958433 DOI: 10.1016/j.heliyon.2024.e27978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 03/06/2024] [Accepted: 03/08/2024] [Indexed: 03/26/2024] Open
Abstract
Endophytic fungi are known for producing secondary metabolites with valuable biological activities, including antiviral, anticancer, antibacterial, and antioxidant properties. This study aims to evaluate an endophytic fungus from Dragon Scales leaves (Drymoglossum piloselloides) and analyze its metabolites as antioxidants and antibacterials. In this study, an endophytic fungus was isolated from the leaves of Dragon Scales (D. piloselloides) and identified using molecular analysis of the Internal Transcribed Spacer (ITS) ribosomal RNA locus. The fungus was authenticated as Alternaria alternata strain K-10. Crude extracts were obtained using n-hexane and ethyl acetate and analyzed via GC-MS Shimadzu-QP 2010 Ultra with NIST spectral library. Antibacterial activity was observed against Bacillus subtilis, Staphylococcus aureus, Escherichia coli, and Pseudomonas aeruginosa using the paper disc method, showing inhibition zones of 8.7-9.3 mm and 8.8-9.4 mm for ethyl acetate and n-hexane extracts, respectively. Ethyl acetate and n-hexane extracts exhibited strong antioxidant potential against 2,2-diphenyl-1-picrylhydrazil (DPPH) radical (IC50 values of 50.99 μg mL-1 and 74.44 μg mL-1, respectively). GC-MS analysis revealed 40 compounds in both extracts, some of which, including 2-ethylhexyl ester benzoic acid, benzo-b-dihydropyran-6-hydroxy-4-4-5-7-8-pentamethyl, diethyl phthalate, and octadecanoic acid, were identified through in silico analysis and found to possess antioxidant properties. These findings hold implications for potential applications of the plant and its biological constituent to be developed as lead compounds in the medical sector.
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Affiliation(s)
- Kusmiati Kusmiati
- Research Center for Biosystematics and Evolution- Research Organization for Life Sciences and Environment, The National Research and Innovation Agency (BRIN), Indonesia
| | - Asrul Fanani
- Research and Education Center for Bioinformatics, Indonesia Institute of Bioinformatics, Malang, 65162, Indonesia
| | - Arif Nurkanto
- Research Center for Biosystematics and Evolution- Research Organization for Life Sciences and Environment, The National Research and Innovation Agency (BRIN), Indonesia
| | - Ismu Purnaningsih
- Directorate of Scientific Collection Management, The National Research and Innovation Agency (BRIN)- KST Soekarno, Jl Raya Bogor Km 46, Cibinong Bogor, 16911, Indonesia
| | - Jendri Mamangkey
- Department of Biology Education, Faculty of Education and Teacher Training, Universitas Kristen Indonesia, Jakarta, Indonesia
- Research Center for Genetic Engineering, Research Organization for Life Sciences and Environment, National Research and Innovation Agency (BRIN), KST Soekarno, Cibinong, Bogor, Indonesia
| | - Indriati Ramadhani
- Research Center for Biosystematics and Evolution- Research Organization for Life Sciences and Environment, The National Research and Innovation Agency (BRIN), Indonesia
| | - Dian Alfian Nurcahyanto
- Research Center for Biosystematics and Evolution- Research Organization for Life Sciences and Environment, The National Research and Innovation Agency (BRIN), Indonesia
| | - Partomuan Simanjuntak
- Research Center for Pharmaceutical Ingredient and Traditional Medicine, National Research and Innovation Agency (BRIN), Indonesia
| | - Fifi Afiati
- Research Center for Applied Microbiology-Research Organization for Life Sciences and Environment, The National Research and Innovation Agency (BRIN), Indonesia
| | - Herman Irawan
- Research Center for Genetic Engineering, Research Organization for Life Sciences and Environment, National Research and Innovation Agency (BRIN), KST Soekarno, Cibinong, Bogor, Indonesia
| | - Ade Lia Puteri
- Research Center for Biosystematics and Evolution- Research Organization for Life Sciences and Environment, The National Research and Innovation Agency (BRIN), Indonesia
| | - Muhammad Farrel Ewaldo
- Master's Programme in Biomedical Sciences, Faculty of Medicine, Universitas Indonesia Jl. Salemba Raya – Jakarta Pusat, Indonesia
| | - Ario Betha Juanssilfero
- Research Center for Applied Microbiology-Research Organization for Life Sciences and Environment, The National Research and Innovation Agency (BRIN), Indonesia
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2
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Anjum S, Ali H, Naseer F, Abduh MS, Qadir H, Kakar S, Waheed Y, Ahmad T. Antioxidant activity of Carica papaya & Persea americana fruits against cadmium induced neurotoxicity, nephrotoxicity, and hepatotoxicity in rats with a computational approach. J Trace Elem Med Biol 2024; 81:127324. [PMID: 37944220 DOI: 10.1016/j.jtemb.2023.127324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 10/18/2023] [Accepted: 10/19/2023] [Indexed: 11/12/2023]
Abstract
BACKGROUND Cadmium is widely reported to interfere with the proper functioning of cells by disrupting cellular redox balance, causing apoptosis, and leading to hepatocellular damage, neurotoxicity, pulmonary edema, cancer, and cardiac and neurodegenerative diseases. Treatment of Cd toxicity with drugs brings undesirable side effects, making it necessary to remove Cd from the body safely without harmful effects. OBJECTIVE This study aimed to determine how Cd causing malfunctioning of cells could be treated with antioxidant-rich avocado and papaya fruit juices. This work fixated on elucidating and comparing the effects of avocado and papaya fruit juice on Cd-dependent impairment in memory and spatial learning. In addition, various markers of tissue damage, such as the concentration of biomarkers in liver and kidney tissue, the expression of antioxidant enzymes and Cd-induced lipid peroxidation, were analyzed. METHODOLOGY in silico studies of the phytochemical constituents of avocado and papaya (ligands) were docked against antioxidant enzymes Catalase (CAT), glutathione peroxidase (GPx) and superoxide dismutase (SOD) as macromolecules showed strong hydrogen binding with significant binding capacities. To develop the Cd in vivo model, rats were administered CdCl2 (200 ppm) in drinking water for 7 weeks. After induction of Cd toxicity, rats were post-treated with avocado and papaya (10% w/v each) in a standard diet. After post-treatment, memory and learning were assessed using the Morris water maze behavioural test. Biochemical tests for liver and kidney biomarkers were monitored. To determine the level of ROS, lipid peroxidation was determined by Malondialdehyde (MDA) assay. Gene expression of SOD, CAT and GPx were determined via qRT-PCR. RESULTS This study demonstrated that Cd accumulation in the liver, kidney and hippocampal tissues was reduced after treatment with avocado and papaya. SOD, CAT and GPX gene expression were upregulated after avocado and papaya juice treatment. Moreover, a comparative analysis between avocado and papaya fruit juices clarified that papaya has more active potential for improving memory and learning, upregulating the expression of antioxidant enzymes, and reducing lipid peroxidation in the liver, kidney, and hippocampus. CONCLUSION This study suggests that a diet containing papaya and avocado can help treat the lethal effects caused by Cd. Because their active constituents can improve health at the cellular and molecular levels.
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Affiliation(s)
- Sadia Anjum
- Department of Biology, University of Hail, Hail, Saudi Arabia
| | - Hamile Ali
- Industrial Biotechnology, Atta-ur-Rahman School of Applied Biosciences, National University of Sciences and Technology, Islamabad, Pakistan
| | - Faiza Naseer
- Industrial Biotechnology, Atta-ur-Rahman School of Applied Biosciences, National University of Sciences and Technology, Islamabad, Pakistan; Shifa College of Pharmaceutical Sciences, Shifa Tameer e Millat University, Islamabad, Pakistan.
| | - Maisa S Abduh
- Immune Responses in Different Diseases Research Group, Department of Medical Laboratory Sciences, Faculty of Applied Medical Sciences, King Abdul-Aziz University, Jeddah 21589, Saudi Arabia
| | - Halima Qadir
- Shifa College of Pharmaceutical Sciences, Shifa Tameer e Millat University, Islamabad, Pakistan
| | - Salik Kakar
- Pak-Austria Fachhochschule Institute of Applied Sciences and Technology, Haripur, KPK, Pakistan
| | - Yasir Waheed
- Gilbert and Rose-Marie Chagoury School of Medicine, Lebanese American University, Byblos 1401, Lebanon; Office of Research, Innovation, and Commercialization (ORIC), Shaheed Zulfiqar Ali Bhutto Medical University, Islamabad, Pakistan
| | - Tahir Ahmad
- Industrial Biotechnology, Atta-ur-Rahman School of Applied Biosciences, National University of Sciences and Technology, Islamabad, Pakistan.
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Wang D, Zhuang X, Yin Y, Wu D, He W, Zhu W, Xu Y, Zuo M, Wang L. Indole Diterpene Derivatives from the Aspergillus flavus GZWMJZ-288, an Endophytic Fungus from Garcinia multiflora. Molecules 2023; 28:7931. [PMID: 38067659 PMCID: PMC10707737 DOI: 10.3390/molecules28237931] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 11/27/2023] [Accepted: 11/29/2023] [Indexed: 12/18/2023] Open
Abstract
A new indole diterpene, 26-dihydroxyaflavininyl acetate (1), along with five known analogs (2-6) were isolated from the liquid fermentation of Aspergillus flavus GZWMJZ-288, an endophyte from Garcinia multiflora. The structures of these compounds were identified through NMR, MS, chemical reaction, and X-ray diffraction experiments. Enzyme inhibition activity screening found that compounds 1, 4, and 6 have a good binding affinity with NPC1L1, among which compound 6 exhibited a stronger binding ability than ezetimibe at a concentration of 10 µM. Moreover, compound 5 showed inhibitory activity against α-glucosidase with an IC50 value of 29.22 ± 0.83 µM, which is 13 times stronger than that of acarbose. The results suggest that these aflavinine analogs may serve as lead compounds for the development of drugs targeting NPC1L1 and α-glucosidase. The binding modes of the bioactive compounds with NPC1L1 and α-glucosidase were also performed through in silico docking studies.
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Grants
- U1812403, QKHJC-ZK[2021]ZD017, QKHZC[2022]YB191, QKHJC-ZK [2022]YB392, QKHZYD[2022]4015, RZ [2022]4, J [2020]006, 19NSP078, 20NSP065, QKTCZJZ [2022]02 the National Natural Science Foundation of China, Guizhou Provincial Basic Research Program (Natural Science), Guizhou Provincial Key Technology R&D Program, "Light of the West" Talent Cultivation Program of Chinese Academy of Sciences, Guizhou Medical U
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Affiliation(s)
- Dongyang Wang
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, China; (D.W.)
- Natural Products Research Center of Guizhou Province, Guiyang 550014, China
| | - Xiaohong Zhuang
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, China; (D.W.)
- Natural Products Research Center of Guizhou Province, Guiyang 550014, China
- School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang 550025, China
| | - Ying Yin
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, China; (D.W.)
- Natural Products Research Center of Guizhou Province, Guiyang 550014, China
- School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang 550025, China
| | - Dan Wu
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, China; (D.W.)
- Natural Products Research Center of Guizhou Province, Guiyang 550014, China
| | - Wenwen He
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, China; (D.W.)
- Natural Products Research Center of Guizhou Province, Guiyang 550014, China
| | - Weiming Zhu
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, China; (D.W.)
- School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
| | - Yanchao Xu
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, China; (D.W.)
- School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang 550025, China
| | - Mingxing Zuo
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, China; (D.W.)
- Natural Products Research Center of Guizhou Province, Guiyang 550014, China
| | - Liping Wang
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, China; (D.W.)
- Natural Products Research Center of Guizhou Province, Guiyang 550014, China
- School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang 550025, China
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Wu ST, Han SS, Xu XM, Sun HJ, Zhou H, Shang K, Liu ZH, Liang SJ. 3-Methyladenine ameliorates surgery-induced anxiety-like behaviors in aged mice by inhibiting autophagy-induced excessive oxidative stress. Metab Brain Dis 2023; 38:1913-1923. [PMID: 37097438 DOI: 10.1007/s11011-023-01217-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Accepted: 04/17/2023] [Indexed: 04/26/2023]
Abstract
BACKGROUND Postoperative anxiety is a common surgical complication in older patients. Research has recently linked excessive autophagy to several neurological disorders, including anxiety. This study aimed to determine whether 3-Methyladenine (3-MA) administration reduced anxiety-like behaviors in a mouse model following abdominal exploratory laparotomy. METHODS An abdominal exploratory laparotomy model of postoperative anxiety was established using male C57BL/6 mice aged 20 months. 3-MA (6, 30, and 150 mg/ml) was administered via intracerebroventricular immediately following surgery. The mice were assessed 14 days after surgery using the marble burying, elevated plus maze tests, and local field potential recording in the amygdala. The levels of expression of phosphorylated-Akt, Beclin-1, LC3B, nuclear factor erythroid 2-related factor 2 (Nrf2)-occupied regions in NeuN-positive cells, superoxide dismutase (SOD) activity, malondialdehyde (MDA), and glutathione (GSH) were measured at 24 h after surgery. RESULTS The injection of 3-MA reversed the increased number of marbles buried, decreased time spent in the open arm, and enhanced θ oscillation power after 14 days of abdominal exploratory laparotomy. In addition, administration of 3-MA reduced the ratio of phosphorylated- to total-Akt, decreased expression in Beclin-1 and LC3B, attenuated MDA levels, and increased the ratio of Nrf2-occupied areas in NeuN-positive cells, SOD activity, and GSH levels under abdominal exploratory laparotomy conditions. CONCLUSIONS 3-MA improved anxiety-like behaviors in aged mice undergoing abdominal exploratory laparotomy by inhibiting excessive autophagy-induced oxidative stress. These results suggest that 3-MA could be an effective treatment for postoperative anxiety.
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Affiliation(s)
- Song-Tao Wu
- Department of Anesthesiology, First Hospital of Qinhuangdao, Qinhuangdao, China
| | - Shan-Shan Han
- Department of Anesthesiology, First Hospital of Qinhuangdao, Qinhuangdao, China
| | - Xi-Ming Xu
- Department of Anesthesiology, First Hospital of Qinhuangdao, Qinhuangdao, China
| | - Hai-Jun Sun
- Department of Anesthesiology, First Hospital of Qinhuangdao, Qinhuangdao, China
| | - Hua Zhou
- Hebei North University, Zhangjiakou, China
| | - Kun Shang
- Hebei North University, Zhangjiakou, China
| | - Zi-Hao Liu
- Hebei North University, Zhangjiakou, China
| | - Shu-Juan Liang
- Department of Anesthesiology, First Hospital of Qinhuangdao, Qinhuangdao, China.
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Carreón-Trujillo S, Vázquez-González D, Corona JC. Atomoxetine Decreases Mitochondrial Biogenesis, Fission and Fusion In Human Neuron-like Cells But Does Not Alter Antioxidant Defences. Cell Biochem Biophys 2023; 81:105-115. [PMID: 36346546 DOI: 10.1007/s12013-022-01116-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Accepted: 10/30/2022] [Indexed: 11/10/2022]
Abstract
Atomoxetine (ATX) is a presynaptic norepinephrine transporter (NET) inhibitor widely prescribed for attention-deficit/hyperactivity disorder (ADHD) due to its low abuse potential and absence of psychostimulant effects. While NET inhibition is implicated in the clinical response, several additional pharmacoactivities may contribute to clinical efficacy or unwanted side effects. We recently reported that ATX can dose-dependently alter mitochondrial function and cellular redox status. Here, we assessed potential alterations in mitochondrial biogenesis, mitochondrial dynamics and cellular antioxidant capacity following high- and low-dose ATX treatment of differentiated human neuroblastoma cells. Human SH-SY5Y neuroblastoma cells were treated with ATX (1, 5, 10, 20 and 50 μM) for 7 days under differentiation culture conditions. Changes in the expression levels of protein markers for mitochondrial biogenesis, fusion and fission as well as of antioxidant proteins were analysed by Western blot. High-dose ATX (50 μM) reduced while low-dose ATX (10 μM) increased mitochondrial biogenesis as evidenced by parallel changes in SDHA, COX-I, PGC1α and TFAM expression. High-dose ATX also reduced mitochondrial fusion as evidenced by OPA1 and MFN2 downregulation, and mitochondrial fission as indicated by DRP1 and Fis1 downregulation. In contrast, ATX did not alter expression of the antioxidant enzymes SOD1 and catalase, the phase II transcription factor Nfr2, or the Nfr2-regulated antioxidant enzyme NQO1. Clinical responses and side effects of ATX may be mediated by dose-dependent modulation of mitochondrial biogenesis and dynamics as well as NET inhibition.
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Affiliation(s)
- Sonia Carreón-Trujillo
- Laboratory of Neurosciences, Hospital Infantil de México Federico Gómez, 06720, Mexico City, Mexico
| | - Daniela Vázquez-González
- Laboratory of Neurosciences, Hospital Infantil de México Federico Gómez, 06720, Mexico City, Mexico
| | - Juan Carlos Corona
- Laboratory of Neurosciences, Hospital Infantil de México Federico Gómez, 06720, Mexico City, Mexico.
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Oğul Y, Gür F, Gür B, Cengiz M, Sarı RA, Kızıltunç A. Decreased Na +/K + pump activity in the erythrocyte membrane due to malondialdehyde in rheumatoid arthritis: an in vivo and in silico study. Can J Physiol Pharmacol 2022; 100:968-982. [PMID: 36148907 DOI: 10.1139/cjpp-2022-0171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Apart from demonstrating the interaction behavior of malondialdehyde (MDA) with Na+/K+-ATPase using in silico, the current study aims to investigate the effect of rheumatoid arthritis-related oxidative stress on Na+/K+-ATPase activity that is present in the erythrocyte cell membrane, which is rich in proteins vulnerable to damage from MDA and other free radicals. The target population of this study consists of 28 rheumatoid arthritis patients and 20 healthy volunteers whose MDA levels and Na+/K+-ATPase activity were determined. It was shown that MDA levels of rheumatoid arthritis patients increased (p < 0.001) and their Na+/K+-ATPase activity noticeably decreased when compared to those of healthy individuals. Also, according to this in silico modeling, MDA decreased Na+/K+-ATPase activity in line with the correlation analyses. Consequently, while elevated levels of MDA in the rheumatoid arthritis group were suggestive of oxidative stress, a decreased Na+/K+-ATPase-activity led us to speculate that the cellular membrane had sustained injury. Therefore, our results could be useful in explaining how MDA affects Na+/K+-ATPase activity in the interior of a specific molecular pathway.
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Affiliation(s)
- Yasemin Oğul
- Department of Medicinal Biochemistry, Regional Training and Research Hospital, Health Sciences University, Erzurum, 25240, Turkey
| | - Fatma Gür
- Department of Medical Services and Techniques, Health Services Vocational School, Ataturk University, Erzurum, 25240, Turkey
| | - Bahri Gür
- Department of Biochemistry, Faculty of Sciences and Arts, Iğdır University, Iğdır, 76000, Turkey
| | - Mustafa Cengiz
- Department of Elementary Education, Faculty of Education, Siirt University, 56100 Siirt, Turkey
| | - Refik Ali Sarı
- Department of Internal Diseases, Faculty of Medicine, Karadeniz Technical University, Trabzon, 61080, Turkey
| | - Ahmet Kızıltunç
- Department of Biochemistry, Faculty of Medicine, Ataturk University, Erzurum, 25240, Turkey
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Bayraktutan T, Gür B, Onganer Y. A new FRET-based functional chemosensor for fluorometric detection of Fe3+and its validation through in silico studies. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.132448] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Yong‐Lin W, Yan Z, Yan T, Yuan‐Fang K, Yu‐Long H, Jie‐Ming L, Shao‐Pei W, Chun‐Hong D, Xiao‐Fei L. Exploring the Hypoglycaemic Mechanism of Chinese Medicine Xiao‐Ke‐An Based on Target Dipeptidyl Peptidase 4 Using Molecular Docking and Dynamics Simulation. ChemistrySelect 2021. [DOI: 10.1002/slct.202101661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Wang Yong‐Lin
- School of Pharmacy Henan University of Chinese Medicine 156 Jinshui East Road Zhengzhou Henan China
| | - Zhuang Yan
- School of Pharmacy Henan University of Chinese Medicine 156 Jinshui East Road Zhengzhou Henan China
| | - Tong Yan
- School of Pharmacy Henan University of Chinese Medicine 156 Jinshui East Road Zhengzhou Henan China
| | - Kong Yuan‐Fang
- School of Pharmacy Henan University of Chinese Medicine 156 Jinshui East Road Zhengzhou Henan China
| | - Hu Yu‐Long
- School of Pharmacy Henan University of Chinese Medicine 156 Jinshui East Road Zhengzhou Henan China
| | - Li Jie‐Ming
- School of Pharmacy Henan University of Chinese Medicine 156 Jinshui East Road Zhengzhou Henan China
| | - Wang Shao‐Pei
- School of Pharmacy Henan University of Chinese Medicine 156 Jinshui East Road Zhengzhou Henan China
| | - Dong Chun‐Hong
- School of Pharmacy Henan University of Chinese Medicine 156 Jinshui East Road Zhengzhou Henan China
| | - Li Xiao‐Fei
- School of Pharmacy Henan University of Chinese Medicine 156 Jinshui East Road Zhengzhou Henan China
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Fang T, Zhang X, Hu S, Yu Y, Sun X, Xu N. Enzymatic Degradation of Gracilariopsis lemaneiformis Polysaccharide and the Antioxidant Activity of Its Degradation Products. Mar Drugs 2021; 19:270. [PMID: 34066101 PMCID: PMC8150296 DOI: 10.3390/md19050270] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 05/01/2021] [Accepted: 05/07/2021] [Indexed: 12/14/2022] Open
Abstract
Gracilariopsis lemaneiformis polysaccharides (GLP) were degraded using pectinase, glucoamylase, cellulase, xylanase, and β-dextranase into low-molecular-weight polysaccharides, namely, GPP, GGP, GCP, GXP, and GDP, respectively, and their antioxidant capacities were investigated. The degraded GLP showed higher antioxidant activities than natural GLP, and GDP exhibited the highest antioxidant activity. After the optimization of degradation conditions through single-factor and orthogonal optimization experiments, four polysaccharide fractions (GDP1, GDP2, GDP3, and GDP4) with high antioxidant abilities (hydroxyl radical scavenging activity, DPPH radical scavenging activity, reduction capacity, and total antioxidant capacity) were obtained. Their cytoprotective activities against H2O2-induced oxidative damage in human fetal lung fibroblast 1 (HFL1) cells were examined. Results suggested that GDP pretreatment can significantly improve cell viability, reduce reactive oxygen species and malonaldehyde levels, improve antioxidant enzyme activity and mitochondria membrane potential, and alleviate oxidative damage in HFL1 cells. Thus, the enzyme degradation of GLP with β-dextranase can significantly improve its antioxidant activity, and GDP might be a suitable source of natural antioxidants.
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Affiliation(s)
| | - Xiaoqian Zhang
- Key Laboratory of Marine Biotechnology of Zhejiang Province, School of Marine Sciences, Ningbo University, Ningbo 315211, China; (T.F.); (S.H.); (Y.Y.); (X.S.)
| | | | | | | | - Nianjun Xu
- Key Laboratory of Marine Biotechnology of Zhejiang Province, School of Marine Sciences, Ningbo University, Ningbo 315211, China; (T.F.); (S.H.); (Y.Y.); (X.S.)
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Zhang ZG, Li YY, Lin B, Guan PP, Mu Y, Qiao WJ, Zhang JS, Huang XS, Han L. New phenolic glycosides from Anemone chinensis Bunge and their antioxidant activity. Nat Prod Res 2021; 36:5009-5015. [PMID: 33908333 DOI: 10.1080/14786419.2021.1917569] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
ABATRACTNine compounds, five phenolic glycosides (1, 2, 4-6), three phenylpropanoids (7-9), and a furanone glycoside (3), were isolated from aqueous soluble extract of the dried roots of Anemone chinensis Bunge. The structures of new compounds (1-4) were elucidated by comprehensive spectroscopic data analysis as well as chemical evidence. Pulsatillanin A (1) demonstrated significant antioxidant effects through scavenging free radical in DPPH assay, and relieved the oxidative stress in LPS-induced RAW 264.7 cells by reducing ROS production, enhancing antioxidant enzyme SOD activity, replenishing depleted GSH in a dose-dependent manner. Western blot analysis revealed that 1 showed antioxidant activity via activating Nrf2 signaling pathway.
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Affiliation(s)
- Zeng-Guang Zhang
- Institute of Microbial Pharmaceuticals, College of Life and Health Sciences, Northeastern University, Shenyang, People's Republic of China
| | - Yuan-Yuan Li
- Institute of Microbial Pharmaceuticals, College of Life and Health Sciences, Northeastern University, Shenyang, People's Republic of China
| | - Bin Lin
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang, People's Republic of China
| | - Pei-Pei Guan
- Institute of Microbial Pharmaceuticals, College of Life and Health Sciences, Northeastern University, Shenyang, People's Republic of China
| | - Yu Mu
- Institute of Microbial Pharmaceuticals, College of Life and Health Sciences, Northeastern University, Shenyang, People's Republic of China
| | - Wen-Jun Qiao
- Affiliated Hospital of Liaoning University of Traditional Chinese Medicine, Shenyang, People's Republic of China
| | - Jing-Sheng Zhang
- Affiliated Hospital of Liaoning University of Traditional Chinese Medicine, Shenyang, People's Republic of China
| | - Xue-Shi Huang
- Institute of Microbial Pharmaceuticals, College of Life and Health Sciences, Northeastern University, Shenyang, People's Republic of China
| | - Li Han
- Institute of Microbial Pharmaceuticals, College of Life and Health Sciences, Northeastern University, Shenyang, People's Republic of China
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Oğul Y, Gür F, Cengiz M, Gür B, Sarı RA, Kızıltunç A. Evaluation of oxidant and intracellular anti-oxidant activity in rheumatoid arthritis patients: In vivo and in silico studies. Int Immunopharmacol 2021; 97:107654. [PMID: 33895477 DOI: 10.1016/j.intimp.2021.107654] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Revised: 03/20/2021] [Accepted: 04/03/2021] [Indexed: 11/24/2022]
Abstract
Rheumatoid Arthritis (RA) is the most prevalent cause of the systematic inflammatory arthritis that destroys the joints. While the pathogenesis of RA remains to be clarified, the imbalance in the oxidant and anti-oxidant defense system plays a crucial role. This study aims to evaluate oxidant and anti-oxidant levels of RA patients and their impacts on the activity of the disease via in silico studies. 28 patients who had not previously received any treatment for RA and 20 healthy controls were included. Their oxidative stress markers, antioxidant markers, and inflammatory factors were investigated via in silico studies. Compared to the Control Group, serum CRP levels, MDA levels, and XO activities were higher in RA Group. Cu/ZnSOD and GPx activities decreased while CAT activities remained unchanged. Besides, there was a positive correlation between MDA-serum CRP levels but a negative correlation between MDA levels-Cu/ZnSOD activities. Furthermore, we observed a negative correlation between CRP levels and Cu/ZnSOD activities. Based on these results, it was concluded that oxidative stress had increased, the defense system had weakened, and ROS production had increased. Finally, our study results with SOD and CAT activity were confirmed by molecular docking studies.
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Affiliation(s)
- Yasemin Oğul
- Department of Medicinal Biochemistry, Regional Training and Research Hospital, Health Sciences University, 25240 Erzurum, Turkey.
| | - Fatma Gür
- Department of Medical Services and Techniques, Health Services Vocational School, Ataturk University, 25240 Erzurum, Turkey
| | - Mustafa Cengiz
- Department of Elementary Education, Faculty of Education, Siirt University, 56100 Siirt, Turkey
| | - Bahri Gür
- Department of Biochemistry, Faculty of Sciences and Arts, Iğdır University, 76000 Iğdır, Turkey
| | - Refik Ali Sarı
- Department of Internal Diseases, Faculty of Medicine, Karadeniz Technical University, 61080 Trabzon, Turkey
| | - Ahmet Kızıltunç
- Department of Biochemistry, Faculty of Medicine, Ataturk University, 25240 Erzurum, Turkey
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Kaya ED, Türkhan A, Gür F, Gür B. A novel method for explaining the product inhibition mechanisms via molecular docking: inhibition studies for tyrosinase from Agaricus bisporus. J Biomol Struct Dyn 2021; 40:7926-7939. [PMID: 33779508 DOI: 10.1080/07391102.2021.1905069] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
The present study aims to investigate the substrate (4-methyl catechol and catechol) specificity and inhibition mechanisms (l-ascorbic acid, citric acid, and l-cysteine) of the tyrosinase enzyme (TYR), which is held responsible for browning in foods and hyperpigmentation in the human skin, through kinetic and molecular docking studies. During the experimental studies, the diphenolase activities of TYR were determined, following which the inhibitory effects of the inhibitors upon the diphenolase activities of TYR. The inhibition types were determined as competitively for l-ascorbic acid and citric acid and noncompetitive for l-cysteine. The kinetic results showed that the substrate specificity was better for catechol while l-cysteine showed the best inhibition profile. As for the in silico studies, they also showed that catechol had a better affinity in line with the experimental results of this study, considering the interactions of the substrates with TYR's active site residues and their distance to CuB metal ion, which is an indicator of diphenolase activity. Besides, the inhibitory mechanisms of the inhibitor molecules were explained by the molecular modeling studies, considering the binding number of the inhibitors with the active site amino acid residues of TYR, the number and length of H bonds, negative binding energy values, and their distance to CuB metal ion. Based on our results, we suggest that the novel method used in this study to explain the inhibitory mechanism of l-cysteine may provide an affordable alternative to the expensive methods available for explaining the inhibitory mechanism of TYR and those of other enzymes. HighlightsThe best affinity for the tyrosinase enzyme occurred with catechol.l-Ascorbic acid, citric acid, l-cysteine inhibited the diphenolic activity of tyrosinase.In silico studies confirmed the best affinity shown by catechol.Product inhibition mechanism of l-cysteine explained by in silico for the first time.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Elif Duygu Kaya
- Department of Food Engineering, Faculty of Engineering, Iğdır University, Iğdır, Turkey
| | - Ayşe Türkhan
- Vocational School of Technical Sciences, Department of Chemistry and Chemical Processing Technologies, Iğdır University, Iğdır, Turkey
| | - Fatma Gür
- Department of Medical Services and Techniques, Health Services Vocational School, Atatürk University, Erzurum, Turkey
| | - Bahri Gür
- Department of Biochemistry, Faculty of Sciences and Arts, Iğdır University, Iğdır, Turkey
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He W, Xu Y, Wu D, Wang D, Gao H, Wang L, Zhu W. New alkaloids from the diversity-enhanced extracts of an endophytic fungus Aspergillus flavus GZWMJZ-288. Bioorg Chem 2021; 107:104623. [PMID: 33444984 DOI: 10.1016/j.bioorg.2020.104623] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 11/22/2020] [Accepted: 12/30/2020] [Indexed: 12/15/2022]
Abstract
Three new alkaloids (1-3) together with four previously reported compounds (4-7) were identified from the extracts and the diversity-enhanced extracts of the fermentation broth of the endophytic fungus, Aspergillus flavus GZWMJZ-288 associated with Garcinia multiflora. The structures of new compounds were respectively determined as 19-amino-19-dehydroxy 5-epi-α-cyclopiazonic acid (1), 2-hydroxymethyl-5-(3-oxobutan-2-yl)aminopyran-4(4H)-one (2) and 4-amino-2-hydroxymethylpyridin-5-ol (3) by spectroscopic analysis, ECD calculation and X-ray single crystal diffraction. Compounds 1 and 4 with 19-enamine were dynamic equilibrium of Z- and E- isomers in the solution but favored in Z- isomers in the solid state, while compound 7 with 19-enol was favored in Z- isomer in the solution but a mixture of Z- and E- isomers in solid state. This phenomenon could be explained by the quantum-mechanical energies calculations. Among the isolated compounds 1-7, compounds 1, 4 and 7 with a rare 1,3,4,5-tetrahydro-1-azaacenaphtho[3,4-c]pyrrolizidine skeleton showed α-glucosidase inhibitory activity with the IC50 values of 41.97 ± 0.97, 232.57 ± 11.45 and 243.95 ± 3.36 μM, respectively, and the binding modes were performed by silico docking studies.
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Affiliation(s)
- Wenwen He
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, China; Key Laboratory of Chemistry for Natural Products of Guizhou Province, Chinese Academy of Sciences, Guiyang 550014, China; School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang 550025, China
| | - Yanchao Xu
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, China; Key Laboratory of Chemistry for Natural Products of Guizhou Province, Chinese Academy of Sciences, Guiyang 550014, China; School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang 550025, China
| | - Dan Wu
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, China; Key Laboratory of Chemistry for Natural Products of Guizhou Province, Chinese Academy of Sciences, Guiyang 550014, China; School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang 550025, China
| | - Dongyang Wang
- Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266003, China
| | - Hai Gao
- Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266003, China
| | - Liping Wang
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, China; Key Laboratory of Chemistry for Natural Products of Guizhou Province, Chinese Academy of Sciences, Guiyang 550014, China; School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang 550025, China.
| | - Weiming Zhu
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, China; Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266003, China.
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